diff --git a/src/flash/nand/core.h b/src/flash/nand/core.h
index 308859bd4..f0e72f2c9 100644
--- a/src/flash/nand/core.h
+++ b/src/flash/nand/core.h
@@ -68,7 +68,7 @@ struct nand_device {
 	int address_cycles;
 	int page_size;
 	int erase_size;
-	int use_raw;
+	bool use_raw;
 	int num_blocks;
 	struct nand_block *blocks;
 	struct nand_device *next;
diff --git a/src/flash/nand/tcl.c b/src/flash/nand/tcl.c
index d238e7a69..5db29ab86 100644
--- a/src/flash/nand/tcl.c
+++ b/src/flash/nand/tcl.c
@@ -547,7 +547,7 @@ static COMMAND_HELPER(create_nand_device, const char *bank_name,
 	c->bus_width = 0;
 	c->address_cycles = 0;
 	c->page_size = 0;
-	c->use_raw = 0;
+	c->use_raw = false;
 	c->next = NULL;
 
 	retval = CALL_COMMAND_HANDLER(controller->nand_device_command, c);